Glossary
Technical changes reserved
127
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Devices or replacement components intended for operation by ordinary
persons: Protection against contact with live parts must be in place when
operating devices or replacing components.
-
The IK code against mechanical impacts must be at least IK05 for indoor
installation.
-
Operating conditions: Degree of pollution 2 applies as a minimum.
-
The number of neutral conductor connections must be at least the number of
outgoing connections on outgoing circuits that require a neutral conductor
connection.
-
The DBO must have at least two connections for protective equipotential
bonding conductors to the electrical system.
Switchgear and controlgear assemblies to EN (IEC) 61439-3 that permit
operation by ordinary persons may also include equipment that ordinary persons
are not allowed to operate. Effective measures must be in place to prevent
ordinary persons from operating this equipment.
Additional information is provided in EN (IEC) 61439 Parts 1 and 3.
EN (IEC) 61439/DIN EN (IEC) 61439
The EN (IEC) 61439 series of standards aims to harmonise the rules and
requirements for switchgear and controlgear assemblies.
The valid part of the EN (IEC) 61439 standard series is always the applicable part
of the standard, e.g. Part 2 of the (EN (IEC) 61439-2) standard for power
switchgear and controlgear assemblies, together with the basic Part 1 of the
standard (EN (IEC) 61439-1).
Connection between European standard and International standard
European standard International
standard
German standard
Classification VDE
specifications
EN (IEC) 61439
(all parts)
IEC 61439
(all parts)
DIN EN (IEC) 61439
(VDE 0660-600)
(all parts)
VDE 0660-600
(all parts)
Parts of the EN (IEC) 61439 standard
Part of European
standard
Content
EN (IEC) 61439-1
Low-voltage switchgear and controlgear assemblies -
Part 1: General rules
EN (IEC) 61439-2
Low-voltage switchgear and controlgear assemblies -
Part 2: Power switchgear and controlgear (PSC) assemblies
EN (IEC) 61439-3
Low-voltage switchgear and controlgear assemblies -
Part 3: Distribution board for operation by ordinary persons
(DBO)
EN (IEC) 61439-4
Low-voltage switchgear and controlgear assemblies -
Part 4: Particular requirements for assemblies for construction
sites (ACS)
EN (IEC) 61439-5
Low-voltage switchgear and controlgear assemblies -
Part 5: Assemblies for power distribution in public networks
EN (IEC) 61439-6
Low-voltage switchgear and controlgear assemblies -
Part 6: Busbar trunking systems (busways)
EN (IEC) 61439-7
Low-voltage switchgear and controlgear assemblies -
Part 7: Assemblies for specific applications such as marinas,
camping sites, market squares, electrical vehicles charging sta-
tions
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